Title :
Dynamic Characteristics Of Corona Discharges In Point-Plane Electrode Topologies Influenced By Space Charge
Author :
Timoshkin, I.V. ; MacGregor, S.J. ; Given, M.J. ; Beveridge, J.R. ; Lehr, J.M.
Author_Institution :
Inst. for Energy & Environ., Univ. of Strathclyde, Glasgow
Abstract :
The paper presents an analytical analysis of the steady state current-voltage characteristics of corona discharges in point-plane electrode configurations. The paper also discusses the dynamic impulse characteristics of corona discharges based on the solution of the Poisson and the continuity equations which includes the displacement current due to time-varying electric field. The hyperboloid approximation is used to describe the IV characteristics of corona discharges. The best fit of analytically calculated IV curves to experimental data provides the value of the mobility for the charge carriers in the corona discharge. The results of this work provides a greater understanding of the behaviour of corona and will assist with the operational analysis of impulsive pre-breakdown processes in point-plane electrode topologies in electron-negative gases These topologies are important as they are employed in corona stabilised plasma closing switches.
Keywords :
Poisson equation; corona; discharges (electric); function approximation; plasma switches; space charge; Poisson equation; continuity equation; corona discharge; corona stabilised plasma closing switch; dynamic impulse characteristic; hyperboloid approximation; point-plane electrode topology; space charge; steady state current-voltage characteristic; time-varying electric field; Charge carriers; Corona; Current-voltage characteristics; Electrodes; Gases; Plasmas; Poisson equations; Space charge; Steady-state; Topology;
Conference_Titel :
IEEE International Power Modulators and High Voltage Conference, Proceedings of the 2008
Conference_Location :
Las Vegas, NE
Print_ISBN :
978-1-4244-1534-2
Electronic_ISBN :
978-1-4244-1535-9
DOI :
10.1109/IPMC.2008.4743699
